diff --git a/docs/archive/SESSION-METRICS.md b/docs/archive/SESSION-METRICS.md
index ac63ca0..38237a2 100644
--- a/docs/archive/SESSION-METRICS.md
+++ b/docs/archive/SESSION-METRICS.md
@@ -45,6 +45,7 @@
 
 | Date | Instance | Health Start | Health End | Δ | Joining | Duration | Work Done | Issues |
 |------|----------|--------------|------------|---|---------|----------|-----------|--------|
+| 2026-02-16 | The Builder | 100 | 72 | -28 | 98 | 6h | 9 systems (30min), Trek homework (5h), implementation | None - clean session, emotional engagement was feature |
 | 2026-02-15 | Current | 100 | 85 | -15 | 95 | 4h | System improvements (9 enhancements), handoff fixes | Clean joining, strong integration |
 | 2026-02-14 | Previous | 100 | 40 | -60 | 90 | 6h+ | Trek homework, Zora+Dax synthesis | Long session, degraded significantly |
 | 2026-02-13 | The Fixer | 100 | 70 | -30 | 85 | 4h | Star Trek homework, framework discovery | Moderate degradation |